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Holy shit, a motorcycle post on NESR?!?
Finally time to fix up my 1980 CB750. My tank is gross inside... does anyone know someone local that restores and seals fuel tanks? I'm in Rhode Island, can travel or ship the tank.
Thank you,
2015/2016 NESR Fantasy Road Race CHAMPION
642
How bad is it? you can do it yourself.
Kreem it
if it's really bad it might not be worth the trouble.
For DIY, I did a Caswell sealant on a tank years ago. Key is in the cleaning. And working temperature was critical, too cold and the stuff hardly flowed, too warm and the compound set up too quickly.
https://caswellplating.com/epoxy-gas-tank-sealer.html
There's a lot of time involved if done right, so I'd guess that any shop would charge a hefty fee for the service, guessing that they might get into it if it were part of a bigger restoration job.
How's the paint? Are you restoring? You could go for broke and ship the tank all your painted parts to BD's Cycles in SC
https://www.facebook.com/BDsCycles
Another experience, when I had my vintage British bikes, I'd take old tanks to Don Hutchinson in Wakefield MA. He'd media blast them inside and out, pressure test them, then weld up any holes. We never lined or coated the insides of the tanks. Then pay him $800 for a restoration paint job. Or I'd do my own paint.
If the tank had an old Kreme job or body filler, he'd burn them out first on a Hibatchi.
https://hutchinsoncycle.com/2012/03/...ank-for-paint/
https://hutchinsoncycle.com/blog/page/2/
Last edited by whynot; 02-23-23 at 08:32 AM.
And don't believe everything you think.
The tank itself is in the good shape. The paint has some flaws, but we're dent-free.
If the inside of the tank is something I could get done for a few hundred dollars; that's all I really care about.
I'll check out the DIY options, but I don't have a great workspace right now.
2015/2016 NESR Fantasy Road Race CHAMPION
642
[EDIT -- removed my DIY technique since better suggestions follow from others]
Here's a good DIY YT, using vinegar-- good comments, too:
https://www.youtube.com/watch?v=XzzeNdjPUS4
Last edited by whynot; 02-23-23 at 01:25 PM.
And don't believe everything you think.
Evaporust
What's the difference between a bolt and a screw?
First you screw, then you bolt.
I had http://gastanklining.com/ clean and line my 3TJ OEM tank, came out mint and only disturbed my horrible rattle can paintjob a tiny amount where they had to seal through pinholes. Lining held up fine after a crash dented in one corner too.
i think i have used por15 kits a couple times...i know at least once on a rototiller...
https://por15.com/products/motorcycl...a&_ss=e&_v=1.0
Oxalic acid, and a light weight chain as an abrasive instead of nuts & washers
first, the chain, shake the tank good, get anything loose out, the let it sit full of oxalic acid a couple days, rinse good before you put baking soda & water to neutralize any acid, and finally, isopropyl to get any water out before you cream it
I've used both POR and Cream, both good products if applied to a clean tank
Last edited by RandyO; 02-23-23 at 12:18 PM.
RandyO
IBA#9560
A man with a gun is a citizen
A man without a gun is a subject LETS GO BRANDON
Damn system erased my post.
Anyway, chain is ok depending on tank. I've found it doesn't do the corners well. It's pretty rare I need to go that far anyway, only if I'm battling an old liner really. Vinegar does the trick on its own.
this is type of chain I used![]()
RandyO
IBA#9560
A man with a gun is a citizen
A man without a gun is a subject LETS GO BRANDON
Yesssss finally a motorcycle post!!!!!!!
Vinegar is a great rust remover but it leaves the metal totally naked -- it will rust if you look at it wrong.
I've heard that electrolytic rust removal works well on gas tanks, this method seems better to me because it leaves a black oxide layer that provides some protection. Phosphoric acid leaves iron phosphate as a protective coating but I can't imagine filling a tank with phosphoric acid.
Joe
04 Thruxton (Street)
01 SV650 (Track)
75 CB400F (Future Vintage Racer)
68 BSA Royal Star (Garage Floor Lubricator)
Jeez, what a great MC thread. Makes me want to run out and buy an old crap bike and get to de-rusting it.
And don't believe everything you think.
Old Honda's are so much fun to work on and ride. I almost never ride on the street anymore but when I break out the old 1974 cb750 and go tearing around the back roads of ri/CT I just fall in love all over again
Just regular white vinegar from Walmart. Make sure you get enough to fill the tank. It's reusable so I just pour it back into the jugs when done.